Effects of thermal roughness on X-ray studies of liquid surfaces

Authors
Pershan, PS
Citation
Ps. Pershan, Effects of thermal roughness on X-ray studies of liquid surfaces, COLL SURF A, 171(1-3), 2000, pp. 149-157
Citations number
15
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
171
Issue
1-3
Year of publication
2000
Pages
149 - 157
Database
ISI
SICI code
0927-7757(20001010)171:1-3<149:EOTROX>2.0.ZU;2-L
Abstract
The effects of thermal roughness on X-ray studies of liquid surfaces will b e discussed. In contrast to solid surfaces, for which the surface height-he ight correlation function remains finite at large distances, for liquid sur faces thermal fluctuations induce a logarithmic dependence for distances sm aller than a gravitationally induced cutoff that is of the order of mm. As a result of this there is no true specular X-ray reflectivity liquid surfac es. Theory and measurements explaining this phenomena will be presented. (C ) 2000 Elsevier Science B.V. All rights reserved.